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Soulver vs Spike

Side-by-side comparison of two indie startups from the Startup Spotlight directory.

Option A
Soulver

Soulver

Productivity

Notepad calculator for the rest of us.

Soulver lets you mix natural-language math with text — perfect for back-of-envelope math without leaving prose. Built by a solo Australian developer.

Founder
Zac Cohan
Founded
2004
Team
1-10
Listing
Free (nofollow)
Listed
May 2026
View Soulver →
Option B
Spike

Spike

Productivity

The chat-style email app.

Spike transforms email threads into chat-like conversations — a tiny Tel Aviv team built it as a calmer Slack-meets-email.

Founder
Dvir Ben-Aroya
Founded
2014
Team
11-50
Listing
Free (nofollow)
Listed
May 2026
View Spike →

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Soulver alternatives →Spike alternatives →